i have sex problem, (per matured ijaculation) how can improve (avoid it)?

I feel frustrated to make love as i can’t control my time to ijaculate.
How can i control? I haven’t take any medication so far or no visit to physcian.
Thank you

see below link:

http://homeremediesforyou.com/5856/premature-ejaculation?show=5856#q5856